With a larger 20x4 character display, backlight and serial communication this black on green LCD is a simple way to add a display to your next project.
This is the latest evolution of SparkFuns serial LCD. Included on a single board is a 20x4 LCD and an embedded circuit based around a PIC 16F88. The on-board PIC takes a TTL serial input and prints the characters it receives onto the LCD. The installed firmware also allows for a number of special commands so you can clear the screen, adjust the backlight brightness, turn the display on/off, and more.
Communication with SerLCD requires 5V TTL serial at a default baud rate of 9600bps (8-N-1). You can adjust the baud to any standard rate between 2400 and 38400bps. The power (VDD), ground (GND) and RX pins are all broken out to both a 0.1" pitch header as well as a 3-pin JST connector.
SerLCD has the ability to dim the backlight to conserve power if needed. There is also a potentiometer on the back of the display to adjust the contrast.
This LCD makes for a great gift, because it can be used for so many different projects!
Embedded PIC 16F88 utilizes onboard UART for greater communication accuracy
20x4 Black on Green LCD
Adjustable baud rates of 2400, 4800, 9600 (default), 14400, 19200 and 38400
Greater processing speed at 10MHz
Incoming buffer stores up to 80 characters
Backlight transistor can handle up to 1A
Pulse width modulation of backlight allows direct control of backlight brightness and current consumption
All surface mount design allows a backpack that is half the size of the original